US 10,483,534 B2 · Lithium metal anode electrode

Abstract

A lithium metal anode electrode includes (a) a porous conductive layer including a current collector layer that is porous and has a plurality of first pores, at least parts of the first pores extending through the current collector layer; and a conduction loading layer composed of a porous material that does not alloy with lithium, disposed proximate to the current collector layer, and that having a plurality of second pores, at least parts of the second pores extending through the conduction loading layer; and (b) a lithium metal active material layer composed of lithium metal disposed proximate to the porous conductive layer. Parts of the first and second pores are connected and expose the lithium metal active material layer for electrochemical reactions. The first and second pores have respective surface areas that are adapted for lithium deposition so that a stable SEI layer can be formed thereon.

Claims20

Dependent claims

A lithium metal anode electrode, comprising:

(a) a single active layer that consists of a pore-free layer of non-porous lithium metal;
and
(b) a porous conductive layer that is disposed on the single active layer so that the single active layer is exposed for electrochemical reactions through the porous conductive layer, and that comprises:
a current collector layer that has a plurality of pores defined therein at least a portion of which extend through the current collector layer;
and
a conduction loading layer electrically connected to the single active layer, the conduction loading layer having a plurality of pores defined therein at least a portion of which extend through the conduction loading layer, that comprises a porous material that does not alloy with lithium, and that is disposed proximate to the current collector layer,
wherein the porous conductive layer has a surface area effective for lithium deposition in use so that a stable solid-electrolyte interphase (SEI) layer is formed thereon.

4 more elements

Dependencies are inferred from the claim text.

Lithium metal anode electrode

Life of this patent

Lithium metal anode electrode

Life of this patent

Abstract

Claims20